Introducing the most POWERFUL engine in our lineup: The DuroMax XP35HPE 999cc V-Twin Engine. This 4-stroke OHV powerhouse features a quick push button start, electronic speed control, and digital RPM display. Runs on standard 87 octane gasoline, and comes equipped with an oil cooler and muffler. Perfect for your go karts, ATVs, boats, and any project that demands serious POWER!